A.O. Smith HW/HWB 300 THRU 670 77951, 85688, 99593, 78469, 78468, Parts Description, HW 399/420

		59
										72
						72
																48
	3
														5						7
						67
											64
																					72
							72
			72
ROBERTSHAW GAS VALVE											63				4
																	58
																72
COIL HIGH LIMIT ASSEMBLY									38
					24
																			71
													43
				WIRE TERMINALS USED WITH ITEM 62													PILOT ASSEMBLY

			77951	85688	99593	78469		78468
Item		Parts Description			HW 300	HW 399/420			HW 520	HW670
1		Base, Assembly			76195-700	76193-700			76193-700	76193-700
2		Box, Junction			190616-4	190616-4			190616-4	190616-4
3		Bracket, Gas Control String			93764		93764		93764	93764
4		Bracket, Pilot (At Main Gas Burner)			190424	190424			190424	190424
5		Bracket, Shield			190473	190473			190473	190473
6		Burner, Main: Sea....................................................Level			98593-20	98593-2			98593-21	98593-4
	..........	Natural Gas
7		Propane Gas			98593-1	98593-3			98593-22	98593-5
		Burner, Pilot (With......................................................Orifice):			210871	210871			210871	210871
	..........	Natural Gas
9		Propane Gas			210871-1	210871-1			210871-1	210871-1
		Bushing, Snap			98863		98863		98863	98863
10		Cap, Terminal End			98206		98206		98206	98206
11		Clamp, Capillary Tube			94998		94998		94998	94998
12		Clamp, Tubing			68903		68903		68903	68903
13		Clip, Retainer			92979		92979		92979	92979
14		Coil, Combustion Chamber			97485		97486		99267	99267
15			..............................		190285-10	212037/212037....-1			212035	190286-1
		Collector, Flue (Series 100)HW							212035	190286
16		Collector, Flue (Series 101)			190285-1	212037/212037-1
		Control, Intermittent Ignition:			191182-2	191182-2			191182-2	191182-2
	..........	Natural Gas (Series 100)
17		Propane Gas (Series 101)			191182-3	191182-3			191182-3	191182-3
		Control, Limit			93661-4	93661-4			93661-4	93661-4
18		Control, Limit (Protector Switch)			77981-2	77981-2			77981-2	77981-2
19		Cover, Leg			97259-701	97259.......... -701			97259-701	97259-701
20		Cover, Limit Control (Protector Switch)		.............	96667-706	96667.......... -706			96667-706	96667-706
21		Cover, Peep Hole			1050-702	1050-702			1050-702	1050-702
22		Cover, Top			96096-709	96096.......... -701			96378-702	96378-701
23		*Decals:			191857	191857			191857	191857
	..........	ASHRAE
	..........	California			42985		42985		42985	42985
	..........	Clearance — Models HW-300, 399		..............	190022-1	190022-2			- - - -	- - - -
	..........	Clearance — Models HW-420, 520 & 670			- - - -		76982		76982	76982
			................................		192872	192872			192872	192872
	..........	Flammable Vapors/ScaldHW							191367	191367
	..........	Lighting & Operating			191367	191367
	..........	M.E.A			42929-22	42929-22			42929-23	42929-22
	..........	Pilot 77860			77860		77860		77860	97315
	..........	Protector			97315		97315		97315
	..........	Warning			190230	190230			190230	190230
	..........	Water Inlet			94518		94518		94518	94518
	..........	Water Outlet			94519		94519		94519	94519
		Wiring Diagram:
		Natural Gas			192359	192359			192359	192359
		Propane Gas			192360	192360			192360	192360
24		Elbow, Union With 1/8" Pressure Tap			1854		2482		86506	86506
25		Exchanger, Heat			190922	190913			190889	190889
26		Fitting, Limit Control			97570		97570		97570	97570